The present thesis aims to investigate the contours of the sexual politics conceived and implemented by the civilian-military dictatorship . Centrally marked by the motto of the defense of "morality and good behavior", the Brazilian authoritarian regime structured a complex repressive apparatus oriented not only to eliminate political dissidents, but also to regulate and normalize bodies marked by sexual orientation and / or gender identity dissidents. In order to do so, it was necessary to bring together the activities of several state agencies that integrated the information, security and censorship communities around a common moral agenda, despite the disputes and tensions among them. According to this perspective, eroticism, pornography, homosexuality, and transgenderism were classified as threatening themes and practices not only against political stability and national security, but also against the sexual order, the traditional family, and the ethical values that supposedly integrated Brazilian society. The curbing of cultural production, police repression on the streets, surveillance of the nascent homosexual movement, and persecution of its vehicles of expression and communication were some violent measures implemented by different repressive organs and examined in detail. Based on a thorough research in the documentary collections produced by the agencies responsible for repression, as well as a bibliographical review of the existing literature, this research seeks to demonstrate how behavioral and sexual issues were central to the project of "authoritarian utopia," emphasizing a dimension often neglected in both academic reflections and the work about the memory of this period.